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Molluscs of Tasmania

Mactridae – Mactrinae: Spisula (Notospisula) trigonella (Lamarck, 1818) (‘triangular trough-shell’)

Synonym(s): trigonella Lamarck, 1818 parvum Petit, 1853 corbuloides Reeve, 1854 cretacea Angas, 1867 producta Angas, 1867 fluviatilis Angas, 1871.

Typical shell-length 20 mm. Similar to Anapella cycladea, but usually smaller, with swollen umbones and a narrowly triangular but rounded outline. Lives subtidally in sand and mud in sheltered environments. Native. Occurs all around Australia (QLD, NSW, TAS, VIC, SA, WA and NT); not recorded elsewhere. In Tasmanian waters, this is a widespread species but seldom common.


Class: Bivalvia
Subclass: Heterodonta
Order: Veneroida
Superfamily: Mactroidea
Family: Mactridae
Subfamily: Mactrinae
Genus: Spisula

Localities for Spisula trigonella

Ansons Bay
Bangor: Two Mile Beach
Binalong Bay: beach
Binalong Bay: Grants Lagoon
Bridport (unlocalised)
Bruny Island (unlocalised)
Carlton: Park Beach
Carlton River: beach
Clarke Island: Moriarty Bay
Coles Bay: foreshore
Coles Bay: Honeymoon Bay
Coles Bay (unlocalised)
Cremorne: foreshore
Denison Beach (unlocalised)
Devonport: upper estuary
Dianas Basin
Dover: Roaring Bay Beach
Dover (unlocalised)
Dunalley Bay
Eaglehawk Neck: eastern side
Electrona: Peggys Beach
Falmouth: foreshore
Flinders Island: Arthur Bay: Long Point
Flinders Island: Cameron Inlet
Flinders Island: Northeast River: mouth
Flinders Island: Patriarch Beach
Flinders Island: Sellars Lagoon
Flinders Island (unlocalised)
Garden Island Sands
Georges Bay: Humbug Point
Hawley Beach: foreshore towards Point Sorell
Hobart: Battery Point: Marieville Esplanade
Hobart: Sandy Bay: Lords Beach & Wrest Point
Hobart (unlocalised)
Howden: foreshore
Kettering: Trial Bay
King Island: Lavinia Beach: beach nr Lake Martha Lavinia
King Island: Naracoopa: foreshore
King Island: Red Hut Point
King Island: Yellow Rock Beach
Kingston Beach
Lime Bay
Little Coningham Beach
Little Peggs Beach
Lymington: Copper Alley Bay
Margate: Dru Point & Nierinna Creek mouth
Margate foreshore
Maria Island: Point Lesueur
Maria Island: Trigonia Corner
Marion Bay: northern beaches
Middleton: foreshore
Midway Point (unlocalised)
Nine Mile Beach & Dolphin Sands
Orford: Prosser River: mouth
Orford: Raspins Beach
Pitt Water (unlocalised)
Port Arthur: Stewarts Bay
Port Davey: Bond Bay
Port Esperance: Stringers Cove
Richmond: Coal River estuary
Rocky Cape: Picnic Beach & rocks to S
Rokeby Beach
Sandy Bay: Nutgrove Beach
Snug Beach
Sorell: Orielton Lagoon
South Arm: Mary Ann Beach & Gellibrand Point
South Arm Neck: northern side
South Bruny Island: Alonnah Beach
South coast of Tasmania (unlocalised)
Stanley: Anthony Beach
Stanley: Tatlows Beach
Stanley (unlocalised)
Strathblane: Esperance River
Swansea (unlocalised)
Tamar River: Bell Bay: Donovans Bay
Tamar River: Blackwall: foreshore
Tamar River: Brickmakers Point
Tamar River: East Arm
Tamar River: George Town: She Oak Point area
Tamar River: Hillwood: foreshore
Tamar River: Ilfraville: Redbill Point
Tamar River: Kelso: foreshore
Tamar River: Middle Arm
Tamar River: Rosevears: foreshore
Tamar River: Rowella: Middle Point
Taroona: Alum Cliffs
Taroona Beach
Taroona: Hinsby Beach
Tasmania (unlocalised)
Tinderbox Beach

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